Re: crash when calling __builtin_return_address

[Paul Pluzhnikov]

Ulrich Lauther <ulrich.lauther@siemens.com> writes:

> on a AMD Opteron(tm) Processor 252 with gcc compiled for 
> x86_64-unknown-linux-gnu my program crashes when __builtin_return_address()
> is called.

With what parameter?
__builtin_return_address(0) should always work

> This happens only in 64-bit mode AND optimization switched on.
> The documentation says, __builtin_return_address may not work on all
> hosts, but it doesn't speak about crash.
>
> Any hints?

With non-zero parameter, the work __builtin_return_address()
has to do to work correctly (and not crash) is so complicated,
that you should abandon all hope.

Cheers,
-- 
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